The catsM
data frame has 97 rows and 3 columns.
144 adult (over 2kg in weight) cats used for experiments with the drug
digitalis had their heart and body weight recorded. 47 of the cats were
female and 97 were male. The catsM
data frame consists of the data for
the male cats. The full data are in dataset cats
in package MASS
.
catsM
This data frame contains the following columns:
Sex
A factor for the sex of the cat (levels are F
and M
: all
cases are M
in this subset).
Bwt
Body weight in kg.
Hwt
Heart weight in g.
Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.
Venables, W.N. and Ripley, B.D. (1994) Modern Applied Statistics with S-Plus. Springer-Verlag.